"Best shadow pokemon?"

#PokemonGO: With all these balloons the shadow pokemon on my storage keep piling up, and I know for example that I should check iv's on a shadow machop before deleting it, but on a shadow ekans its iv's are irrelevant because shadow arbok has no use.Is there a list or something like that to know which shadow mons are worth keeping, to check pvp iv's for?Thanks! via /r/TheSilphRoad https://ift.tt/35eNpm1